California’s 48th Congressional District flipped blue after Harley Rouda defeated 15-term Republican incumbent Dana Rohrabacher in 2018. This year, Republicans have sought to win back the seat with candidate Michelle Steel, currently chairwoman of the Orange County Board of Supervisors.
The 48th district covers most of the county’s coast, which is mainly Republican, but also parts of Santa Ana and Westminster, which are more Democratic. Santa Ana, with a majority Latino population, has the highest percentage of Democratic voters of all cities in Orange County.